Engine.



G. BRANTINGHAM.

ENGINE.

APPLICATION FILED AUG. 16. 1913.

1,1 16,232. Patented Nov. 3, 1914.

2 SHEETS-SHEET 1.

G. BRANTINGHAM. BNGmB. APPLICATION FILED AUG. 16, 1913.

1,1 116,232.. Patented Nov. 3, 1914.

YHE MORRIS PETERS uU.. PHUTO-Llfh-.. WASHINUTON, L1 v.

GEORGE BRANTINGHAM, or WEYMOUTH, ENGLAND.

ENGINE.

Specification o1' Letters Patent.

Patented N ov. 3, 1914.

Application led August 1G, 1913. Serial No. 785,145.

T 0 all whom it may concern Be it known that I, GEORGE BRANTING- HAM, subject of George V, King of Great Britain and Ireland, and residing at Wyke Regis, l/Veymouth, in the county of Dorset, England, have invented certain new and useful Improvements in Engines, of which the following is aspecification.`

This invention is primarily concerned with marine engine governors, but it has in part a wider application as will hereinafter appear. In its application to marine engine governors the invention relates to the type of governor in which the pitching of the ship imparts movement to a pendulum, rolling weight, tilting mercury tube, or other rocking member, which member actuates the throttle valve of the engine through an auxiliary engine the valve whereof is coupled to the rocking member, and the piston rod to the throttle valve.

\ The invention consists in the provision of a particular form of engine, as hereinafter described and claimed, which, in its use in connection with a marine-engine governor,

is coupled thereto and to the `throttle valve in the manner above referred to. In its use in connection with other apparatus it is suitably connected therewith.

The particular form of engine above referred to consists of a piston slidably fitted within a cylinder and` provided with inlet and exhaust ports which are` normally closed by a slide valve connected with the pendulum. Movementof the pendulum operates the slide valve which thereupon opens the ports thereby admitting pressure to one side of the cylinder, opening the other side to the exhaust, and moving the piston and its rod. Although it would be possible to operate the throttle valve `spindle `direct from this piston rod I preferably provide a relay engine comprising a duplicate of the cylinder and its working parts which is more powerful and which is operated from the smaller or primary cylinder, and I connect the duplicate piston rod direct to the throttle valve spindle.

In order that this invention may be clearly understood and readilycarried into effect, I will proceed to describe the same with reference to the accompanying drawings, which illustrate an embodiment of this invention, and wherein- Figure 1 is aside elevation of the complete governor in which there are a primary cylinder and a relay cylinder. Fig. is an elevation of the left hand or aft end of Fig. l; Fig. 3 is a horizontal longitudinal section of the iston b. Fig. 4 is a section on line 4-4 oiP Fig. 3. Fig. 5 is a longitudinal axial cross section through the cylinder o, the rod m, and the pipe o. Referring to Figs. 1 and 2 of the drawings, o, b, are the cylinders, the upper and smaller cylinder' a (hereinafter` termed the primary cylinder) being mounted on a platform a which is pivoted at a2 to a fixed standard c and is also provided at its left hand end with a screw a3 bearing on a Iixed standard c' and adapted to adjust the platform a to a normally horizontal position, the amount of adjustment required dependingupon the trim of the ship. The pendulum, shown at l is swung from its upper end at al and is provided with a weight d2 at its lower end. Projecting upwardly from the weight d? and passing through a longitudinal slot in the platform a is a screwed pillar (Z3 connected by a rod c hinged to a lever f which in turn is pivoted at its `upper end to the rod of the slide-valve g and slidingly fitted at itslower end in a pin f which is adapted to rock in the platform a. The slide-valve g works lengthwise in the hollo'w piston rod 7L which extends through both ends of the cylinder. The forward end of the piston rod of the primary cylinder a is connected by a rod y' to a lever /c which rocks on a pin 7u in the platform a and has its lower end slidingly fitted in a pin 7a2 adapted to rock in the forward end of the rod of the slide-valve Z of the relay cylinder b. As in the case of the primary cylinder the slide-valve Z works lengthwise in the hollow piston rod fm. which latter extends through both ends of its cylinder b. The motive power, preferably compressed air, is admitted to `the `pistons of the primary and relay cylinders through pipes at and b respectively.

Reference will now be had to Figs. 3 and 4 for a detailed description of the `slidevalve, piston and parts in immediate coperation therewith. The diameter of the piston in Figs. 3 and 4 corresponds to the internal diameter of the relay `cylinder b and as the construction and arrangement of parts illustrated in these figures is the same as the corresponding parts of the primary cylinder a the description thereof will serve for the two cylinders. The slide valve comports, and adjustable means for connecting said valve with said pendulum through which means said valve is operated, and means for communicating the motion of the piston-red to the throttle valve spindle of the engine to be governed.

4. In a marine engine governor, the combination with a pendulum of an auxiliary engine comprising a cylinder, a piston within said cylinder having a piston-rod, a valve chest and ports establishing communication between said valve chest and the opposite sides of said piston, a valve within said valve chest adapted to open and close said ports, means lfor connecting said valve with said pendulum through which means said valve is operated, a bearing for supporting the pendulum, a platform for supporting the auxiliary engine, and means for adjusting the inclination of said platform, and means for communicating the motion of the piston-rod to the throttle valve spindle of the engine to be governed.

5. In a marine engine governor, the combination with a pendulum of an auxiliary engine comprising a cylinder, a pistonwithin said cylinder having a piston-rocha valve chest and ports establishing communication between said valve chest and the opposite sides of said piston, a valve within said valve chest adapted to open and close said ports, means for lconnecting said valve with said pendulum through which means said valve is operated, means for conveying motive fluid to the piston, and means for communicating the motion of the piston rod to the throttle valve spindle of the engine to be governed.

6. In amai-ine engine governor,the combination with a pendulum of an auxiliary engine comprising a cylinder, a piston within said cylinder having a piston-rod, a valve chest and ports establishing communication between said valve chest and the opposite sides of said piston, a valve within said valve chest adapted to open and close said ports, means for connecting said valve with said pendulum through which means said valve is operated, means for limiting the longitudinal movement of said valve, and means for communicating the motion of the piston rod to the throttle valve spindle of` the engine to be governed.

7. An engine comprising a cylinder, a piston within said cylinder having a pistonrod, a valve chest within said piston and ports therein establishing communication between said valve chest and the opposite` sides of said piston, a valve within said` valve-chest adapted to open and close said ports, means for moving the valve so as to enable the engine to operate, means for con veyingvmotive fluid to the valve chest, and means vfor permitting escape of exhaust.

In witness whereotl I have hereunto set my hand in the presence of two witnesses.

GEORGE BRANTINGHAM. Witnesses:

H. I. P. Gen, WAL'rAs W. WARD.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents.

Washington, D. C. 

